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Impact of Feedback Error on Transmit Beamforming with Finite Rate Feedback
Pengcheng ZHU Lan TANG Yan WANG Xiaohu YOU
IEICE TRANSACTIONS on Communications
Publication Date: 2007/09/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
transmit beamforming, feedback error, BER,
Full Text: PDF(159KB)>>
In this letter, we study the impact of feedback error on transmit beamforming systems with finite rate feedback. The feedback channel is modeled as a uniform symmetric channel. The outage probability, bit error rate (BER), diversity gain, and array gain formulas are given. Both analytical and simulation results show that feedback error with small probability will make the system behave badly at high signal-to-noise ratios (SNR).